Honda CB500/4 Gearbox

K0, K1 & K2 (6 Spline Clutch)

K3 (24 Spline Clutch)

Full six speed close ratio gear set comprising both input and output shafts and all gears, selector drum with indexing block and using standard selector forks. Supplied fully assembled ready for installation.

All engagement dogs are undercut and have three dogs to promote positive and rapid engagement.

Due to the change in diameter of the gears, the kickstart mechanism will not work with this gearbox, therefore roller starters will be required to start up.

ENSURE YOU SPECIFY 6 OR 24 CLUTCH SPLINE ON THE INPUT SHAFT WHEN ORDERING

NOTE: A small modification is required to the standard selector forks, this is simply to clear the Nova gears when shifting. For instructions CLICK HERE.

1st 17 – 34 2.000:1
} 25.0%
} 15.0%
} 12.7%
} 10.0%
} 7.1%
2nd 22 – 23 1.500:1
3rd 22 – 28 1.273:1
4th 27 – 30 1.111:1
5th 25 – 25 1.000:1
6th 28 – 26 0.929:1
Overall reduction 1st – 6th 53.6%

1st 2.353:1
} 30.5%
} 22.4%
} 18.4%
} 13.1%
2nd 1.636:1
3rd 1.269:1
4th 1.036:1
5th 0.900:1
Overall reduction 1st – 5th 61.8%

Honda CB500/4 Gearbox

Price £1920.00

+VAT (if applicable) & Carriage.

Nova assembly:

58 (24 spline)

59 (6 spline)